CER ENG 2110 KC 1 CRIB SHEET

Dalton

Atomic theory

Thomson

Electron (plum pudding model)

Rutherford

Nucleus, empty negative space, gold foil experiment

Bohr

Energy levels

Schrödinger

Quantum wave function/probability clouds

Atomic radius

Total distance from nuclei to outer edge of the electron cloud. INCREASES DOWN LEFT.

Ionization energy

Minimum amount of energy needed to remove an electron. INCREASES UP RIGHT

Electronegativity

Atoms tendency to attract electrons. INCREASES UP RIGHT, F HIGHEST

Electron affinity

Amount of energy released when an electron is added to a neutral atom. INCREASES UP RIGHT. Cl HIGHEST.